Anthracite

A Anthracite (Of the Greek carbuncle , Άνθραξ, coal) is a Sedimentary rock of organic origin. It is a variety of coal gray, noirâtre and brilliant extracted the mines. It contains 92 to 95% of Carbone.

It is about a Roche very compact and homogeneous with an almost metal glare.

Layer

Anthracite is exclusively in the rocks of the Paléozoïque (Carbonifère and Permien).

One meets large deposits in China, in Australia, Europe and with the the United States.

Use

  • anthracite is consumed slowly and is used for the Chauffage (calorific value from 7000 to 8000 kcal/kg).
  • Manufacture of electrode S electric.
  • Iron and steel industry
  • Dye
  • Synthetic rubber
  • Filtration of water

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